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Figure 30. Static pressure tube
3. Complete field wiring connections on field terminal
strip:
a. E-Stop
b. Occupied
c. External auto/stop
d. Entering air temperature
e. Discharge air temperature
Electrical Installation
W W A A R R N N I I N N G G
L L i i v v e e E E l l e e c c t t r r i i c c a a l l C C o o m m p p o o n n e e n n t t s s ! !
F F a a i i l l u u r r e e t t o o f f o o l l l l o o w w a a l l l l e e l l e e c c t t r r i i c c a a l l s s a a f f e e t t y y p p r r e e c c a a u u t t i i o o n n s s
w w h h e e n n e e x x p p o o s s e e d d t t o o l l i i v v e e e e l l e e c c t t r r i i c c a a l l c c o o m m p p o o n n e e n n t t s s c c o o u u l l d d
r r e e s s u u l l t t i i n n d d e e a a t t h h o o r r s s e e r r i i o o u u s s i i n n j j u u r r y y . .
W W h h e e n n i i t t i i s s n n e e c c e e s s s s a a r r y y t t o o w w o o r r k k w w i i t t h h l l i i v v e e e e l l e e c c t t r r i i c c a a l l
c c o o m m p p o o n n e e n n t t s s , , h h a a v v e e a a q q u u a a l l i i f f i i e e d d l l i i c c e e n n s s e e d d e e l l e e c c t t r r i i c c i i a a n n
o o r r o o t t h h e e r r i i n n d d i i v v i i d d u u a a l l w w h h o o h h a a s s b b e e e e n n p p r r o o p p e e r r l l y y t t r r a a i i n n e e d d
i i n n h h a a n n d d l l i i n n g g l l i i v v e e e e l l e e c c t t r r i i c c a a l l c c o o m m p p o o n n e e n n t t s s p p e e r r f f o o r r m m
t t h h e e s s e e t t a a s s k k s s . .
1. With main power still dis-connected.
a. Circuit breakers on.
b. Place fuses in fan fuse holder.
c. One fuse pulled on control power transformer
primary.
d. Fan fuse holders connected, ie, closed.
PKG-SVX027C-EN
I I n n s s t t a a l l l l a a t t i i o o n n - - M M e e c c h h a a n n i i c c a a l l
e. Variable speed compressor fuses installed.
2. At the terminal block or disconnect switch.
a. Verify:
•
No continuity between phases.
•
No continuity between each phase and
ground.
b. Do not hi-pot with variable speed compressor
drives or fan fuses installed or fixed speed
compressor motor protection module
connected.
3. Once all these items above have been verified:
a. Replace control power transformer primary
fuse.
4. Connect main power and ground.
5. With fixed speed compressor circuit breakers, and
fan fuse holders open, and variable speed
compressor enable plug removed, apply power to
unit using the unit or remote mounted disconnect
switch.
I I m m p p o o r r t t a a n n t t : : With a phase rotation meter, verify
clockwise rotation at the terminal block
using standard electrical safety
procedures.
6. After clockwise rotation is confirmed, remove main
power unit and verify the unit is de-energized.
7. With fixed speed compressor circuit breakers still
open, and variable speed compressor enable plug
still removed, close fan fuse holders and re-apply
power.
TD-7 Installation
1. Hold faceplate on front side of Low Voltage door
and install TD-7 onto front of Low Voltage door.
Figure 31. TD-7 Face plate
39
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